I tried using throttlestop, but every throttlestop undervolting guide i've searched up requires the use of the "FIVR" option within throttlestop, which my version of throttlestop dosent have.ġ. I tried using Intel XTU, but it refused to install on my laptop as it was a "unsupported platform".
However, I would like for it to be cooler, and started learning about undervolting. The new temperature is slightly lower at around 80 degrees. After installing HWMonitor i found out that my CPU runs at almost 95 degree Celsius while playing league of legends!Īfter doing a bit of research on how to cool off my laptop, i purchased a cooling mat, and i've replaced the thermal paste of the laptop with some Arctic Silver 5. I need to find the way how to modify the R/O 0x195 MSR.I've been using an old Dell Precision M4400 (Windows 7) to play light games like league of legends, and it works fine for it, but recently i've noticed that my laptop gets uncomfortably hot. Unfortunately, I can't find this setting in the decompressed BIOS of my Dell with 12900HK, but I hope Dell and other vendors will add it in the future.Īlso, I would like to hear any suggestions how to disable this "feature". It is called Dynamic Overclocking Undervolt Protection. You can check whether this feature was enabled using the latest version of the HWiNFO64 utility. This feature is described in the latest Intel Software Developer's Manual (December 2022, Volume 4, 2-17) and controlled by the read-only 0x195 MSR called IA32_OVERCLOCKING_STATUS. The negative voltage offsets you specify in BIOS, Intel XTU, ThrottleStop, etc. If the undervolting protection is enabled, you can't decrease the voltage even if you have the unlocked CPU and use the top Z-series chipset.
In other words, ASRock, Gigabyte, Dell, HP, or any other vendor may decide to disable it by default to sell you a more expensive motherboard.
It works in conjunction with recent microcode updates and can be enabled by a motherboard vendor. A few months ago Intel introduced a new feature called Dynamic OC Undervolt Protection, which may completely block the undervolting on Intel CPUs.
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